This security update resolves a remote code execution vulnerability in Microsoft Skype for Business Server and Microsoft Lync Server. To learn more about these vulnerabilities, see Microsoft Common Vulnerabilities and Exposures CVE-2022-33633.
Note To apply this security update, you must have the release version of the following products installed:
Microsoft Skype for Business Server 2019
Microsoft Skype for Business Server 2015
Microsoft Lync Server 2013
How to get and install the update
To get this update, install the following updates:
Security update deployment information
For deployment information about this update, see Deployments - Security Update Guide.
How to get help and support for this security update
Protect yourself online: Windows Security support
Learn how we guard against cyber threats: Microsoft Security